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    Measurement of wheel and/or axle load of road vehicles
    3.
    发明公开
    Measurement of wheel and/or axle load of road vehicles 有权
    Messen der Rad- und / oder Achslast einesStraßenfahrzeugs

    公开(公告)号：EP2189766A1

    公开(公告)日：2010-05-26

    申请号：EP09152462.9

    申请日：2009-02-10

    申请人： International Road Dynamics, Inc.

    发明人： Bergan, Terrance Arthur ,  Hanson, Randal Leroy

    IPC分类号： G01G19/02

    CPC分类号： G01G19/022

    摘要： The present invention provides an improved weigh-in-motion scale. A slight increase in the thickness of a an upper, flexibly-deformable metal plate e.g., having a thickness of about 0.604 inches to about 0.756 inches in a thin, flexibly-deformable plate system coupled with a change in the transverse locations of the load cells each of the strain gauge channels is spaced e.g., by an amount of about 52 % to about 54 % of the distance from the center line of the bottom or lower metal plate to the respective longitudinal edge of the bottom or lower metal plate, provides the improved weigh-in-motion scale, which is capable of weighing substantially heavier loads than previously known weigh-in-motion scales. In use, as weight is applied to the wcigh-in-motion scale, the upper flexibly-deformable metal plate elastically bends. The strain gauges thus provide a changing resistive value proportional to the bending of the flexible element and the weight applied, to generate signals to the Wheatstone bridge circuit, which then provides output signals from the Wheatstone bridge circuit, which are proportional to the force applied to the upper flexibly-deformable metal plate.

    摘要翻译： 本发明提供了改进的称重运动标尺。 上部柔性可变形的金属板的厚度略微增加，例如，在薄的，可挠曲变形的板系统中具有约0.604英寸至约0.756英寸的厚度，以及负载传感器横向位置的变化 每个应变计通道间隔开，例如，距离底部或下部金属板的中心线到底部或下部金属板的相应纵向边缘的距离的约52％至约54％的量， 改进的称重运动尺度，其能够比以前已知的称重运动秤更重地承载重量。 在使用中，当重量施加到移动秤上时，上部可弹性变形金属板弹性弯曲。 因此，应变仪提供与柔性元件的弯曲成比例的变化的电阻值和施加的重量，以产生到惠斯通电桥电路的信号，惠斯通电桥电路然后提供来自惠斯通电桥电路的输出信号，其与施加到 上部柔性可变形的金属板。